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Proxmox Cookbook by Wasim Ahmed

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Chapter 5. Firewall Configurations

In this chapter, we will see a firewall configuration, one of the prominent features of Proxmox. We will cover the following topics in this chapter:

  • Configuring a cluster-specific firewall
  • Configuring a host-specific firewall
  • Configuring a VM-specific firewall
  • Integrating a Suricata IPS
  • Commonly-used firewall CLI commands
  • Logging a firewall

Introduction

The firewall feature in Proxmox VE provides an excellent means to strengthen security within a virtual environment. Proxmox firewall is built on a well-established Linux-based netfilter technology. Netfilter is based on a packet filtering framework, where network data packets are allowed or denied based on a set of defined rules. All the rules are defined as table structures ...

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